My hope and what I see happening is that the major players in the software space are frantically patching as many bugs as they can right now to keep ahead of attackers, and we come out the other end with incredibly robust software.

All the unsupported iot stuff will be obliterated by malicious bots, but the next generation of iot will be both more robust and less directly exposed to the internet. Like how Matter devices sit behind a hub rather than directly connecting to the internet.